Thinking Visually: Triangles as Units of Area

Year: 2017 Authors: Paul Gailiunas

Core claim

Visual thinking can be taught and strengthened through area-based geometric challenges, proof, and classroom investigations centered on triangles.

Topics

visual thinking, area, triangles, proof, classroom investigations

Domains

geometry, area measurement, theorem of Pythagoras, tilings, craft, visual art, design education

Methods

What if … ? inquiry, dynamic geometry, proofs without words, sketching, physical materials

Media

triangles, squares, Goldberg polyhedra, animations, paper sketches

Source status

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